Sökning: "geochemical calculations"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden geochemical calculations.

  1. 1. Computer programs used for geochemical calculations

    Författare :Irene Lundén; Chalmers tekniska högskola; []
    Nyckelord :groundwater; code development; geochemical computer programs; PHREEQE; modelling; cement pore water;

    Sammanfattning : .... LÄS MER

  3. 2. Geochemistry of tin, tungsten and molybdenum in Swedish Proterozoic granitoids : its potential use in regional mineral exploration

    Författare :Karl-Magnus Drake; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Granitoid; lithogeochemistry; Sn; W; Mo; Li; geotectonic - chronologic subdivision; geochemical-statistical grouping; uni- and multivariate statistical analysis; computer programs; metallogenic element distributions; Sn-W-concentration patterns; ore-bearing potential; probability calculations; petrometallogenic element ratios; petrochemical trends; postmagmatic alterations; geochemical variability; normative composition; genesis; absolute age; bibliography; analysis databank; Proterozoic; Sweden; N5600 N6800 E2330 E1120;

    Sammanfattning : The primary aim of this broad regional study is to statistically determine the Li-Sn-W-Mo-bearing potential of various granitoids using geochemical criteria.Computer-based, univariate and multivariate statistical methods are applied to major and trace element data from ca 660 granitic rock samples and over 800 major element analyses, selected from the Swedish geological literature. LÄS MER

  4. 3. Geochemical modelling of groundwater chemistry in the vicinity of a repository for spent nuclear fuel

    Författare :Irene Lundén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; groundwater; uranium; pH; Eh; PHREEQE; geochemical calculations; clay; spent nuclear fuel; standard portland cement; neptunium; rock; DISSOL; bentonite; speciation;

    Sammanfattning : .... LÄS MER

  5. 4. Geochemical and mineralogical laboratory methods in waste rock drainage quality prediction

    Författare :Teemu Karlsson; Lena Alakangas; Päivi Kauppila; Andrew Barnes; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Extractive waste characterisation; drainage water; ARD; NRD; ABA test; NAG test; SEM; Applied Geochemistry; Tillämpad geokemi;

    Sammanfattning : Harmful substances containing acid or neutral rock drainages (ARD and NRD) are a major challenge related to the management of extractive industry wastes. This issue is particularly related to deposits containing sulphide minerals, which are prone to oxidization under the influence of atmospheric oxygen and water. LÄS MER

  7. 5. Solubility of Np(IV), Zr(IV), and Reactive Transport Modeling with Uncertainty Calculations

    Författare :Göran Källvenius; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Sweden, as some other countries, is planning to construct a repository for long-lived low and intermediate level radioactive waste. The planned repository is a concrete construction in the bedrock a few hundreds of meters below the surface. LÄS MER